Siemens SIMATIC S7-1200 Manual page 21

Easy Book
Manual, 11/2009, A5E02486774-01
Zoom the device configuration to over 200% so
that the I/O points of the CPU are legible and
selectable.
1. Select I0.0 and drag it to the first row of the
tag table.
2. Change the tag name from "I0.0" to "Start".
3. Drag I0.1 to the tag table and change the
name to "Stop".
4. Drag Q0.0 (on the bottom of the CPU) to the
tag table and change the name to "Running".
With the PLC tags entered into the tag table, the
tags are available to your user program.
Getting started
21